45278788 has 6 divisors (see below), whose sum is σ = 79237886. Its totient is φ = 22639392.

The previous prime is 45278777. The next prime is 45278809. The reversal of 45278788 is 88787254.

It can be written as a sum of positive squares in only one way, i.e., 40985604 + 4293184 = 6402^2 + 2072^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5659845 + ... + 5659852.

Almost surely, 2^45278788 is an apocalyptic number.

It is an amenable number.

45278788 is a deficient number, since it is larger than the sum of its proper divisors (33959098).

45278788 is a wasteful number, since it uses less digits than its factorization.

45278788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319701 (or 11319699 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 49.

The square root of 45278788 is about 6728.9514784995. The cubic root of 45278788 is about 356.4223514865.

The spelling of 45278788 in words is "forty-five million, two hundred seventy-eight thousand, seven hundred eighty-eight".