45986940 has 60 divisors (see below), whose sum is σ = 144267816. Its totient is φ = 12262752.

The previous prime is 45986933. The next prime is 45986947. The reversal of 45986940 is 4968954.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45986933) and next prime (45986947).

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×45986940² = 4229597301127200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45986947) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12574 + ... + 15813.

Almost surely, 2^45986940 is an apocalyptic number.

It is an amenable number.

45986940 is an abundant number, since it is smaller than the sum of its proper divisors (98280876).

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

45986940 is a wasteful number, since it uses less digits than its factorization.

45986940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28408 (or 28397 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 45986940 is about 6781.3671188043. The cubic root of 45986940 is about 358.2708747578.

The spelling of 45986940 in words is "forty-five million, nine hundred eighty-six thousand, nine hundred forty".