4545490 has 16 divisors (see below), whose sum is σ = 8538048. Its totient is φ = 1739056.

The previous prime is 4545479. The next prime is 4545509. The reversal of 4545490 is 945454.

It is a super-2 number, since 2×4545490² = 41322958680200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9652 + ... + 10111.

It is an arithmetic number, because the mean of its divisors is an integer number (533628).

Almost surely, 2^4545490 is an apocalyptic number.

4545490 is a deficient number, since it is larger than the sum of its proper divisors (3992558).

4545490 is a wasteful number, since it uses less digits than its factorization.

4545490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19793.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 4545490 is about 2132.0154783678. The cubic root of 4545490 is about 165.6508119259.

The spelling of 4545490 in words is "four million, five hundred forty-five thousand, four hundred ninety".