3628451920 has 40 divisors (see below), whose sum is σ = 8449637760. Its totient is φ = 1449060480.

The previous prime is 3628451903. The next prime is 3628451927. The reversal of 3628451920 is 291548263.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3628451927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14541 + ... + 86419.

It is an arithmetic number, because the mean of its divisors is an integer number (211240944).

Almost surely, 2^3628451920 is an apocalyptic number.

It is an amenable number.

3628451920 is an abundant number, since it is smaller than the sum of its proper divisors (4821185840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3628451920 is a wasteful number, since it uses less digits than its factorization.

3628451920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72523 (or 72517 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 3628451920 is about 60236.6327080125. The cubic root of 3628451920 is about 1536.6458623756.

The spelling of 3628451920 in words is "three billion, six hundred twenty-eight million, four hundred fifty-one thousand, nine hundred twenty".