420743402 has 8 divisors (see below), whose sum is σ = 631341216. Its totient is φ = 210296332.

The previous prime is 420743371. The next prime is 420743437. The reversal of 420743402 is 204347024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30428 + ... + 42039.

It is an arithmetic number, because the mean of its divisors is an integer number (78917652).

Almost surely, 2^420743402 is an apocalyptic number.

420743402 is a deficient number, since it is larger than the sum of its proper divisors (210597814).

420743402 is a wasteful number, since it uses less digits than its factorization.

420743402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75372.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 420743402 is about 20512.0306649537. The cubic root of 420743402 is about 749.3288229484.

The spelling of 420743402 in words is "four hundred twenty million, seven hundred forty-three thousand, four hundred two".