150666440 has 32 divisors (see below), whose sum is σ = 339795000. Its totient is φ = 60125184.

The previous prime is 150666433. The next prime is 150666469. The reversal of 150666440 is 44666051.

It can be written as a sum of positive squares in 4 ways, for example, as 144624676 + 6041764 = 12026^2 + 2458^2 .

It is a super-2 number, since 2×150666440² = 45400752284547200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 150666397 and 150666406.

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, 13766 + ... + 22154.

Almost surely, 2^150666440 is an apocalyptic number.

150666440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150666440 is an abundant number, since it is smaller than the sum of its proper divisors (189128560).

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

150666440 is a wasteful number, since it uses less digits than its factorization.

150666440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8849 (or 8845 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 150666440 is about 12274.6258598786. The cubic root of 150666440 is about 532.1150089605.

The spelling of 150666440 in words is "one hundred fifty million, six hundred sixty-six thousand, four hundred forty".