420378370 has 8 divisors (see below), whose sum is σ = 756681084. Its totient is φ = 168151344.

The previous prime is 420378359. The next prime is 420378373. The reversal of 420378370 is 73873024.

It can be written as a sum of positive squares in 2 ways, for example, as 407353489 + 13024881 = 20183^2 + 3609^2 .

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

It is not an unprimeable number, because it can be changed into a prime (420378373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21018909 + ... + 21018928.

Almost surely, 2^420378370 is an apocalyptic number.

420378370 is a deficient number, since it is larger than the sum of its proper divisors (336302714).

420378370 is a wasteful number, since it uses less digits than its factorization.

420378370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42037844.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 420378370 is about 20503.1307365485. The cubic root of 420378370 is about 749.1120573067.

The spelling of 420378370 in words is "four hundred twenty million, three hundred seventy-eight thousand, three hundred seventy".