1401020404 has 24 divisors (see below), whose sum is σ = 2949517760. Its totient is φ = 568835136.

The previous prime is 1401020399. The next prime is 1401020441. The reversal of 1401020404 is 4040201041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1316217 + ... + 1317280.

Almost surely, 2^1401020404 is an apocalyptic number.

1401020404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1401020404 is an abundant number, since it is smaller than the sum of its proper divisors (1548497356).

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

1401020404 is a wasteful number, since it uses less digits than its factorization.

1401020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633527 (or 2633525 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1401020404 is about 37430.2071060260. The cubic root of 1401020404 is about 1118.9606652835.

Adding to 1401020404 its reverse (4040201041), we get a palindrome (5441221445).

The spelling of 1401020404 in words is "one billion, four hundred one million, twenty thousand, four hundred four".