1402979380 has 48 divisors (see below), whose sum is σ = 3383271360. Its totient is φ = 483321600.

The previous prime is 1402979351. The next prime is 1402979387. The reversal of 1402979380 is 839792041.

It is a super-2 number, since 2×1402979380² = 3936702281410368800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402979387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163641 + ... + 172000.

It is an arithmetic number, because the mean of its divisors is an integer number (70484820).

Almost surely, 2^1402979380 is an apocalyptic number.

1402979380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402979380 is an abundant number, since it is smaller than the sum of its proper divisors (1980291980).

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

1402979380 is a wasteful number, since it uses less digits than its factorization.

1402979380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335680 (or 335678 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1402979380 is about 37456.3663480589. The cubic root of 1402979380 is about 1119.4819511055.

The spelling of 1402979380 in words is "one billion, four hundred two million, nine hundred seventy-nine thousand, three hundred eighty".