151269440 has 56 divisors (see below), whose sum is σ = 411675072. Its totient is φ = 51863040.

The previous prime is 151269439. The next prime is 151269479. The reversal of 151269440 is 44962151.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 151269397 and 151269406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31526 + ... + 36005.

Almost surely, 2^151269440 is an apocalyptic number.

151269440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151269440 is an abundant number, since it is smaller than the sum of its proper divisors (260405632).

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

151269440 is an equidigital number, since it uses as much as digits as its factorization.

151269440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67555 (or 67545 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 151269440 is about 12299.1641992454. The cubic root of 151269440 is about 532.8239441905.

The spelling of 151269440 in words is "one hundred fifty-one million, two hundred sixty-nine thousand, four hundred forty".