10219418 has 20 divisors (see below), whose sum is σ = 16910250. Its totient is φ = 4631880.

The previous prime is 10219409. The next prime is 10219427. The reversal of 10219418 is 81491201.

It is an interprime number because it is at equal distance from previous prime (10219409) and next prime (10219427).

It can be written as a sum of positive squares in only one way, i.e., 7745089 + 2474329 = 2783^2 + 1573^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 29108 + ... + 29456.

Almost surely, 2^10219418 is an apocalyptic number.

10219418 is a deficient number, since it is larger than the sum of its proper divisors (6690832).

10219418 is an frugal number, since it uses more digits than its factorization.

10219418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 10219418 is about 3196.7824448967. The cubic root of 10219418 is about 217.0078217855.

The spelling of 10219418 in words is "ten million, two hundred nineteen thousand, four hundred eighteen".