150451440 has 80 divisors (see below), whose sum is σ = 468767616. Its totient is φ = 39916800.

The previous prime is 150451423. The next prime is 150451447. The reversal of 150451440 is 44154051.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 150451440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150451447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49155 + ... + 52125.

Almost surely, 2^150451440 is an apocalyptic number.

150451440 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 150451440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234383808).

150451440 is an abundant number, since it is smaller than the sum of its proper divisors (318316176).

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

150451440 is a wasteful number, since it uses less digits than its factorization.

150451440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198 (or 3192 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 150451440 is about 12265.8648288655. The cubic root of 150451440 is about 531.8617802867.

The spelling of 150451440 in words is "one hundred fifty million, four hundred fifty-one thousand, four hundred forty".