45420615 has 32 divisors (see below), whose sum is σ = 81028800. Its totient is φ = 24140160.

The previous prime is 45420601. The next prime is 45420643. The reversal of 45420615 is 51602454.

45420615 is a `hidden beast` number, since 4 + 5 + 42 + 0 + 615 = 666.

It is not a de Polignac number, because 45420615 - 2⁹ = 45420103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 68385 + ... + 69045.

It is an arithmetic number, because the mean of its divisors is an integer number (2532150).

Almost surely, 2^45420615 is an apocalyptic number.

45420615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45420615 is a deficient number, since it is larger than the sum of its proper divisors (35608185).

45420615 is a wasteful number, since it uses less digits than its factorization.

45420615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 45420615 is about 6739.4818050055. The cubic root of 45420615 is about 356.7941048472.

The spelling of 45420615 in words is "forty-five million, four hundred twenty thousand, six hundred fifteen".