211274040 has 64 divisors (see below), whose sum is σ = 635104800. Its totient is φ = 56225792.

The previous prime is 211274027. The next prime is 211274047. The reversal of 211274040 is 40472112.

It is a happy number.

211274040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211273998 and 211274016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211274047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69676 + ... + 72644.

Almost surely, 2^211274040 is an apocalyptic number.

211274040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211274040 is an abundant number, since it is smaller than the sum of its proper divisors (423830760).

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

211274040 is a wasteful number, since it uses less digits than its factorization.

211274040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576 (or 3572 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 211274040 is about 14535.2688313633. The cubic root of 211274040 is about 595.5918034318.

The spelling of 211274040 in words is "two hundred eleven million, two hundred seventy-four thousand, forty".