420743370 has 64 divisors (see below), whose sum is σ = 1115700480. Its totient is φ = 101004288.

The previous prime is 420743363. The next prime is 420743371. The reversal of 420743370 is 73347024.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420743371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6205 + ... + 29664.

It is an arithmetic number, because the mean of its divisors is an integer number (17432820).

Almost surely, 2^420743370 is an apocalyptic number.

420743370 is an abundant number, since it is smaller than the sum of its proper divisors (694957110).

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

420743370 is a wasteful number, since it uses less digits than its factorization.

420743370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35919.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 420743370 is about 20512.0298849236. The cubic root of 420743370 is about 749.3288039514.

The spelling of 420743370 in words is "four hundred twenty million, seven hundred forty-three thousand, three hundred seventy".