152697840 has 40 divisors (see below), whose sum is σ = 473364048. Its totient is φ = 40719360.

The previous prime is 152697821. The next prime is 152697869. The reversal of 152697840 is 48796251.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 152697792 and 152697801.

It is a congruent number.

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, 317881 + ... + 318360.

Almost surely, 2^152697840 is an apocalyptic number.

152697840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152697840 is an abundant number, since it is smaller than the sum of its proper divisors (320666208).

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

152697840 is a wasteful number, since it uses less digits than its factorization.

152697840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636257 (or 636251 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 152697840 is about 12357.0967464045. The cubic root of 152697840 is about 534.4958012180.

The spelling of 152697840 in words is "one hundred fifty-two million, six hundred ninety-seven thousand, eight hundred forty".