420739652 has 24 divisors (see below), whose sum is σ = 751294656. Its totient is φ = 206095968.

The previous prime is 420739651. The next prime is 420739721. The reversal of 420739652 is 256937024.

It is a super-2 number, since 2×420739652² = 354043709530162208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420739651) 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, 224423 + ... + 226289.

It is an arithmetic number, because the mean of its divisors is an integer number (31303944).

Almost surely, 2^420739652 is an apocalyptic number.

It is an amenable number.

420739652 is a deficient number, since it is larger than the sum of its proper divisors (330555004).

420739652 is a wasteful number, since it uses less digits than its factorization.

420739652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 420739652 is about 20511.9392549803. The cubic root of 420739652 is about 749.3265967369.

The spelling of 420739652 in words is "four hundred twenty million, seven hundred thirty-nine thousand, six hundred fifty-two".