3750400020 has 24 divisors (see below), whose sum is σ = 10501120224. Its totient is φ = 1000106656.

The previous prime is 3750400019. The next prime is 3750400021. The reversal of 3750400020 is 200040573.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3750400019) and next prime (3750400021).

It is a self number, because there is not a number n which added to its sum of digits gives 3750400020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3750400021) 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, 31253274 + ... + 31253393.

It is an arithmetic number, because the mean of its divisors is an integer number (437546676).

Almost surely, 2^3750400020 is an apocalyptic number.

3750400020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3750400020 is an abundant number, since it is smaller than the sum of its proper divisors (6750720204).

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

3750400020 is a wasteful number, since it uses less digits than its factorization.

3750400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62506679 (or 62506677 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 3750400020 is about 61240.5096321054. The cubic root of 3750400020 is about 1553.6714934638.

Adding to 3750400020 its reverse (200040573), we get a palindrome (3950440593).

The spelling of 3750400020 in words is "three billion, seven hundred fifty million, four hundred thousand, twenty".