151463440 has 80 divisors (see below), whose sum is σ = 373101120. Its totient is φ = 57024000.

The previous prime is 151463423. The next prime is 151463479. The reversal of 151463440 is 44364151.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 151463399 and 151463408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381322 + ... + 381718.

It is an arithmetic number, because the mean of its divisors is an integer number (4663764).

Almost surely, 2^151463440 is an apocalyptic number.

151463440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151463440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186550560).

151463440 is an abundant number, since it is smaller than the sum of its proper divisors (221637680).

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

151463440 is a wasteful number, since it uses less digits than its factorization.

151463440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 151463440 is about 12307.0483870017. The cubic root of 151463440 is about 533.0516255331.

The spelling of 151463440 in words is "one hundred fifty-one million, four hundred sixty-three thousand, four hundred forty".