45140688 has 30 divisors (see below), whose sum is σ = 126331634. Its totient is φ = 15046848.

The previous prime is 45140657. The next prime is 45140701. The reversal of 45140688 is 88604154.

It can be written as a sum of positive squares in only one way, i.e., 44195904 + 944784 = 6648^2 + 972^2 .

It is a super-2 number, since 2×45140688² = 4075363426226688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156595 + ... + 156882.

Almost surely, 2^45140688 is an apocalyptic number.

45140688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

45140688 is an abundant number, since it is smaller than the sum of its proper divisors (81190946).

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

45140688 is a wasteful number, since it uses less digits than its factorization.

45140688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313491 (or 313482 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 45140688 is about 6718.6820136095. The cubic root of 45140688 is about 356.0596205326.

The spelling of 45140688 in words is "forty-five million, one hundred forty thousand, six hundred eighty-eight".