1420040402 has 32 divisors (see below), whose sum is σ = 2351643840. Its totient is φ = 637758720.

The previous prime is 1420040383. The next prime is 1420040407. The reversal of 1420040402 is 2040400241.

It is not an unprimeable number, because it can be changed into a prime (1420040407) 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, 711518 + ... + 713510.

It is an arithmetic number, because the mean of its divisors is an integer number (73488870).

Almost surely, 2^1420040402 is an apocalyptic number.

1420040402 is a deficient number, since it is larger than the sum of its proper divisors (931603438).

1420040402 is a wasteful number, since it uses less digits than its factorization.

1420040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1420040402 is about 37683.4234378991. The cubic root of 1420040402 is about 1124.0015244847.

Adding to 1420040402 its reverse (2040400241), we get a palindrome (3460440643).

The spelling of 1420040402 in words is "one billion, four hundred twenty million, forty thousand, four hundred two".