3726978840 has 96 divisors (see below), whose sum is σ = 13044442320. Its totient is φ = 917409024.

The previous prime is 3726978823. The next prime is 3726978841. The reversal of 3726978840 is 488796273.

3726978840 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3726978841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393502 + ... + 402861.

Almost surely, 2^3726978840 is an apocalyptic number.

3726978840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3726978840 is an abundant number, since it is smaller than the sum of its proper divisors (9317463480).

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

3726978840 is a wasteful number, since it uses less digits than its factorization.

3726978840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796393 (or 796386 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 3726978840 is about 61048.9872151865. The cubic root of 3726978840 is about 1550.4305207148.

The spelling of 3726978840 in words is "three billion, seven hundred twenty-six million, nine hundred seventy-eight thousand, eight hundred forty".