45402361 has 4 divisors (see below), whose sum is σ = 46146724. Its totient is φ = 44658000.

The previous prime is 45402353. The next prime is 45402407. The reversal of 45402361 is 16320454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16320454 = 2 ⋅8160227.

It can be written as a sum of positive squares in 2 ways, for example, as 17640000 + 27762361 = 4200^2 + 5269^2 .

It is a cyclic number.

It is not a de Polignac number, because 45402361 - 2³ = 45402353 is a prime.

It is a super-2 number, since 2×45402361² = 4122748768748642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45402311) 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, 372090 + ... + 372211.

It is an arithmetic number, because the mean of its divisors is an integer number (11536681).

Almost surely, 2^45402361 is an apocalyptic number.

It is an amenable number.

45402361 is a deficient number, since it is larger than the sum of its proper divisors (744363).

45402361 is an equidigital number, since it uses as much as digits as its factorization.

45402361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744362.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 45402361 is about 6738.1274104902. The cubic root of 45402361 is about 356.7463013534.

It can be divided in two parts, 454023 and 61, that multiplied together give a triangular number (27695403 = T₇₄₄₂).

The spelling of 45402361 in words is "forty-five million, four hundred two thousand, three hundred sixty-one".