240651356142 has 32 divisors (see below), whose sum is σ = 516065472000. Its totient is φ = 74542785408.

The previous prime is 240651356137. The next prime is 240651356161. The reversal of 240651356142 is 241653156042.

It is a super-2 number, since 2×240651356142² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240651356142.

It is a congruent number.

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, 14924392 + ... + 14940507.

It is an arithmetic number, because the mean of its divisors is an integer number (16127046000).

Almost surely, 2^240651356142 is an apocalyptic number.

240651356142 is an abundant number, since it is smaller than the sum of its proper divisors (275414115858).

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

240651356142 is a wasteful number, since it uses less digits than its factorization.

240651356142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29865000.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 240651356142 in words is "two hundred forty billion, six hundred fifty-one million, three hundred fifty-six thousand, one hundred forty-two".