420407537 has 8 divisors (see below), whose sum is σ = 460250400. Its totient is φ = 380835360.

The previous prime is 420407531. The next prime is 420407549. The reversal of 420407537 is 735704024.

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

It is a cyclic number.

It is not a de Polignac number, because 420407537 - 2⁴ = 420407521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420407531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64412 + ... + 70637.

It is an arithmetic number, because the mean of its divisors is an integer number (57531300).

Almost surely, 2^420407537 is an apocalyptic number.

It is an amenable number.

420407537 is a deficient number, since it is larger than the sum of its proper divisors (39842863).

420407537 is a wasteful number, since it uses less digits than its factorization.

420407537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135343.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 420407537 is about 20503.8420058291. The cubic root of 420407537 is about 749.1293820532.

The spelling of 420407537 in words is "four hundred twenty million, four hundred seven thousand, five hundred thirty-seven".