403421142 has 16 divisors (see below), whose sum is σ = 807150960. Its totient is φ = 134422272.

The previous prime is 403421119. The next prime is 403421153. The reversal of 403421142 is 241124304.

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, 6334 + ... + 29102.

It is an arithmetic number, because the mean of its divisors is an integer number (50446935).

Almost surely, 2^403421142 is an apocalyptic number.

403421142 is an abundant number, since it is smaller than the sum of its proper divisors (403729818).

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

403421142 is a wasteful number, since it uses less digits than its factorization.

403421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25727.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 403421142 is about 20085.3464495886. The cubic root of 403421142 is about 738.9009384643.

Adding to 403421142 its reverse (241124304), we get a palindrome (644545446).

The spelling of 403421142 in words is "four hundred three million, four hundred twenty-one thousand, one hundred forty-two".