421380465 has 32 divisors (see below), whose sum is σ = 736560000. Its totient is φ = 204011520.

The previous prime is 421380451. The next prime is 421380473. The reversal of 421380465 is 564083124.

It is not a de Polignac number, because 421380465 - 2⁹ = 421379953 is a prime.

It is a super-2 number, since 2×421380465² = 355122992567232450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151911 + ... + 154659.

It is an arithmetic number, because the mean of its divisors is an integer number (23017500).

Almost surely, 2^421380465 is an apocalyptic number.

It is an amenable number.

421380465 is a deficient number, since it is larger than the sum of its proper divisors (315179535).

421380465 is a wasteful number, since it uses less digits than its factorization.

421380465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 421380465 is about 20527.5537997103. The cubic root of 421380465 is about 749.7068276371.

The spelling of 421380465 in words is "four hundred twenty-one million, three hundred eighty thousand, four hundred sixty-five".