45399377 has 4 divisors (see below), whose sum is σ = 45507636. Its totient is φ = 45291120.

The previous prime is 45399373. The next prime is 45399383. The reversal of 45399377 is 77399354.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2483776 + 42915601 = 1576^2 + 6551^2 .

It is a cyclic number.

It is not a de Polignac number, because 45399377 - 2² = 45399373 is a prime.

It is a super-2 number, since 2×45399377² = 4122206863976258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45399371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53498 + ... + 54339.

It is an arithmetic number, because the mean of its divisors is an integer number (11376909).

Almost surely, 2^45399377 is an apocalyptic number.

It is an amenable number.

45399377 is a deficient number, since it is larger than the sum of its proper divisors (108259).

45399377 is a wasteful number, since it uses less digits than its factorization.

45399377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108258.

The product of its digits is 714420, while the sum is 47.

The square root of 45399377 is about 6737.9059803473. The cubic root of 45399377 is about 356.7384856490.

The spelling of 45399377 in words is "forty-five million, three hundred ninety-nine thousand, three hundred seventy-seven".