1401867090 has 96 divisors (see below), whose sum is σ = 4156182576. Its totient is φ = 324771840.

The previous prime is 1401867079. The next prime is 1401867143. The reversal of 1401867090 is 907681041.

1401867090 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 991683081 + 410184009 = 31491^2 + 20253^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15351 + ... + 55130.

Almost surely, 2^1401867090 is an apocalyptic number.

1401867090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401867090 is an abundant number, since it is smaller than the sum of its proper divisors (2754315486).

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

1401867090 is a wasteful number, since it uses less digits than its factorization.

1401867090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70524 (or 70521 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1401867090 is about 37441.5155943239. The cubic root of 1401867090 is about 1119.1860290113.

The spelling of 1401867090 in words is "one billion, four hundred one million, eight hundred sixty-seven thousand, ninety".