4945440 has 48 divisors (see below), whose sum is σ = 15579648. Its totient is φ = 1318656.

The previous prime is 4945411. The next prime is 4945469. The reversal of 4945440 is 445494.

It is an interprime number because it is at equal distance from previous prime (4945411) and next prime (4945469).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4945398 and 4945407.

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, 4672 + ... + 5631.

It is an arithmetic number, because the mean of its divisors is an integer number (324576).

Almost surely, 2^4945440 is an apocalyptic number.

4945440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4945440 is an abundant number, since it is smaller than the sum of its proper divisors (10634208).

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

4945440 is a wasteful number, since it uses less digits than its factorization.

4945440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10321 (or 10313 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 4945440 is about 2223.8345262182. The cubic root of 4945440 is about 170.3733432700.

It can be divided in two parts, 49454 and 40, that added together give a palindrome (49494).

The spelling of 4945440 in words is "four million, nine hundred forty-five thousand, four hundred forty".