151863444 has 96 divisors (see below), whose sum is σ = 411143040. Its totient is φ = 48432384.

The previous prime is 151863443. The next prime is 151863461. The reversal of 151863444 is 444368151.

151863444 is a `hidden beast` number, since 1 + 5 + 18 + 634 + 4 + 4 = 666.

It is a super-2 number, since 2×151863444² = 46125011247082272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 151863399 and 151863408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151863443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245824 + ... + 246440.

It is an arithmetic number, because the mean of its divisors is an integer number (4282740).

Almost surely, 2^151863444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151863444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205571520).

151863444 is an abundant number, since it is smaller than the sum of its proper divisors (259279596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151863444 is a wasteful number, since it uses less digits than its factorization.

151863444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 718 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 151863444 is about 12323.2886844381. The cubic root of 151863444 is about 533.5204633273.

The spelling of 151863444 in words is "one hundred fifty-one million, eight hundred sixty-three thousand, four hundred forty-four".