1405231404 has 12 divisors (see below), whose sum is σ = 3278873304. Its totient is φ = 468410464.

The previous prime is 1405231363. The next prime is 1405231411. The reversal of 1405231404 is 4041325041.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1405231404² = 3949350597575622432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58551297 + ... + 58551320.

It is an arithmetic number, because the mean of its divisors is an integer number (273239442).

Almost surely, 2^1405231404 is an apocalyptic number.

It is an amenable number.

1405231404 is an abundant number, since it is smaller than the sum of its proper divisors (1873641900).

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

1405231404 is a wasteful number, since it uses less digits than its factorization.

1405231404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117102624 (or 117102622 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1405231404 is about 37486.4162597600. The cubic root of 1405231404 is about 1120.0806181340.

Adding to 1405231404 its reverse (4041325041), we get a palindrome (5446556445).

The spelling of 1405231404 in words is "one billion, four hundred five million, two hundred thirty-one thousand, four hundred four".