10420518 has 16 divisors (see below), whose sum is σ = 21747456. Its totient is φ = 3322440.

The previous prime is 10420499. The next prime is 10420537. The reversal of 10420518 is 81502401.

It is an interprime number because it is at equal distance from previous prime (10420499) and next prime (10420537).

It is a junction number, because it is equal to n+sod(n) for n = 10420494 and 10420503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37618 + ... + 37893.

It is an arithmetic number, because the mean of its divisors is an integer number (1359216).

Almost surely, 2^10420518 is an apocalyptic number.

10420518 is an abundant number, since it is smaller than the sum of its proper divisors (11326938).

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

10420518 is a wasteful number, since it uses less digits than its factorization.

10420518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75539.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 10420518 is about 3228.0827126950. The cubic root of 10420518 is about 218.4220284641.

Adding to 10420518 its reverse (81502401), we get a palindrome (91922919).

The spelling of 10420518 in words is "ten million, four hundred twenty thousand, five hundred eighteen".